Home / 710,006,665.02-979,790,400.77-396,743,453.16

Finding the Fourth Proportional to 710,006,665.02, 979,790,400.77 and 396,743,453.16

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Solution

The fourth proportional to 710,006,665.02, 979,790,400.77 and 396,743,453.16 is: 547,495,461.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,006,665.02 : 979,790,400.77 = 396,743,453.16 : x
  2. Step 2: Convert to fraction form
    710,006,665.02/979,790,400.77 = 396,743,453.16/x
  3. Step 3: Cross multiply
    710,006,665.02x = 979,790,400.77 × 396,743,453.16
  4. Step 4: Simplify right side
    710,006,665.02x = 388,725,426,972,526,400
  5. Step 5: Solve for x
    x = 388,725,426,972,526,400/710,006,665.02
  6. Step 6: Final answer
    x = 547,495,461.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.